upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/board/BuR/common/common.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* common.c
*
* common board functions for B&R boards
*
* Copyright (C) 2013 Hannes Schmelzer <oe5hpm@oevsv.at>
* Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
*
*/
#include <version.h>
#include <common.h>
#include <environment.h>
#include <errno.h>
#include <asm/arch/cpu.h>
#include <asm/arch/hardware.h>
#include <asm/arch/omap.h>
#include <asm/arch/clock.h>
#include <asm/arch/gpio.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <i2c.h>
#include <power/tps65217.h>
#include <lcd.h>
#include "bur_common.h"
#include "../../../drivers/video/am335x-fb.h"
DECLARE_GLOBAL_DATA_PTR;
/* --------------------------------------------------------------------------*/
#if defined(CONFIG_LCD) && defined(CONFIG_AM335X_LCD) && \
!defined(CONFIG_SPL_BUILD)
void lcdbacklight(int on)
{
unsigned int driver = env_get_ulong("ds1_bright_drv", 16, 0UL);
unsigned int bright = env_get_ulong("ds1_bright_def", 10, 50);
unsigned int pwmfrq = env_get_ulong("ds1_pwmfreq", 10, ~0UL);
unsigned int tmp;
struct gptimer *timerhw;
if (on)
bright = bright != ~0UL ? bright : 50;
else
bright = 0;
switch (driver) {
case 2:
timerhw = (struct gptimer *)DM_TIMER5_BASE;
break;
default:
timerhw = (struct gptimer *)DM_TIMER6_BASE;
}
switch (driver) {
case 0: /* PMIC LED-Driver */
/* brightness level */
tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_WLEDCTRL2, bright, 0xFF);
/* current sink */
tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_WLEDCTRL1,
bright != 0 ? 0x0A : 0x02,
0xFF);
break;
case 1:
case 2: /* PWM using timer */
if (pwmfrq != ~0UL) {
timerhw->tiocp_cfg = TCFG_RESET;
udelay(10);
while (timerhw->tiocp_cfg & TCFG_RESET)
;
tmp = ~0UL-(V_OSCK/pwmfrq); /* bottom value */
timerhw->tldr = tmp;
timerhw->tcrr = tmp;
tmp = tmp + ((V_OSCK/pwmfrq)/100) * bright;
timerhw->tmar = tmp;
timerhw->tclr = (TCLR_PT | (2 << TCLR_TRG_SHIFT) |
TCLR_CE | TCLR_AR | TCLR_ST);
} else {
puts("invalid pwmfrq in env/dtb! skip PWM-setup.\n");
}
break;
default:
puts("no suitable backlightdriver in env/dtb!\n");
break;
}
}
int load_lcdtiming(struct am335x_lcdpanel *panel)
{
struct am335x_lcdpanel pnltmp;
pnltmp.hactive = env_get_ulong("ds1_hactive", 10, ~0UL);
pnltmp.vactive = env_get_ulong("ds1_vactive", 10, ~0UL);
pnltmp.bpp = env_get_ulong("ds1_bpp", 10, ~0UL);
pnltmp.hfp = env_get_ulong("ds1_hfp", 10, ~0UL);
pnltmp.hbp = env_get_ulong("ds1_hbp", 10, ~0UL);
pnltmp.hsw = env_get_ulong("ds1_hsw", 10, ~0UL);
pnltmp.vfp = env_get_ulong("ds1_vfp", 10, ~0UL);
pnltmp.vbp = env_get_ulong("ds1_vbp", 10, ~0UL);
pnltmp.vsw = env_get_ulong("ds1_vsw", 10, ~0UL);
pnltmp.pxl_clk = env_get_ulong("ds1_pxlclk", 10, ~0UL);
pnltmp.pol = env_get_ulong("ds1_pol", 16, ~0UL);
pnltmp.pup_delay = env_get_ulong("ds1_pupdelay", 10, ~0UL);
pnltmp.pon_delay = env_get_ulong("ds1_tondelay", 10, ~0UL);
panel_info.vl_rot = env_get_ulong("ds1_rotation", 10, 0);
if (
~0UL == (pnltmp.hactive) ||
~0UL == (pnltmp.vactive) ||
~0UL == (pnltmp.bpp) ||
~0UL == (pnltmp.hfp) ||
~0UL == (pnltmp.hbp) ||
~0UL == (pnltmp.hsw) ||
~0UL == (pnltmp.vfp) ||
~0UL == (pnltmp.vbp) ||
~0UL == (pnltmp.vsw) ||
~0UL == (pnltmp.pxl_clk) ||
~0UL == (pnltmp.pol) ||
~0UL == (pnltmp.pup_delay) ||
~0UL == (pnltmp.pon_delay)
) {
puts("lcd-settings in env/dtb incomplete!\n");
printf("display-timings:\n"
"================\n"
"hactive: %d\n"
"vactive: %d\n"
"bpp : %d\n"
"hfp : %d\n"
"hbp : %d\n"
"hsw : %d\n"
"vfp : %d\n"
"vbp : %d\n"
"vsw : %d\n"
"pxlclk : %d\n"
"pol : 0x%08x\n"
"pondly : %d\n",
pnltmp.hactive, pnltmp.vactive, pnltmp.bpp,
pnltmp.hfp, pnltmp.hbp, pnltmp.hsw,
pnltmp.vfp, pnltmp.vbp, pnltmp.vsw,
pnltmp.pxl_clk, pnltmp.pol, pnltmp.pon_delay);
return -1;
}
debug("lcd-settings in env complete, taking over.\n");
memcpy((void *)panel,
(void *)&pnltmp,
sizeof(struct am335x_lcdpanel));
return 0;
}
static void br_summaryscreen_printenv(char *prefix,
char *name, char *altname,
char *suffix)
{
char *envval = env_get(name);
if (0 != envval) {
lcd_printf("%s %s %s", prefix, envval, suffix);
} else if (0 != altname) {
envval = env_get(altname);
if (0 != envval)
lcd_printf("%s %s %s", prefix, envval, suffix);
} else {
lcd_printf("\n");
}
}
void br_summaryscreen(void)
{
br_summaryscreen_printenv(" - B&R -", "br_orderno", 0, "-\n");
br_summaryscreen_printenv(" Serial/Rev :", "br_serial", 0, "\n");
br_summaryscreen_printenv(" MAC1 :", "br_mac1", "ethaddr", "\n");
br_summaryscreen_printenv(" MAC2 :", "br_mac2", 0, "\n");
lcd_puts(" Bootloader : " PLAIN_VERSION "\n");
lcd_puts("\n");
}
void lcdpower(int on)
{
u32 pin, swval, i;
pin = env_get_ulong("ds1_pwr", 16, ~0UL);
if (pin == ~0UL) {
puts("no pwrpin in dtb/env, cannot powerup display!\n");
return;
}
for (i = 0; i < 3; i++) {
if (pin != 0) {
swval = pin & 0x80 ? 0 : 1;
if (on)
gpio_direction_output(pin & 0x7F, swval);
else
gpio_direction_output(pin & 0x7F, !swval);
debug("switched pin %d to %d\n", pin & 0x7F, swval);
}
pin >>= 8;
}
}
vidinfo_t panel_info = {
.vl_col = 1366, /*
* give full resolution for allocating enough
* memory
*/
.vl_row = 768,
.vl_bpix = 5,
.priv = 0
};
void lcd_ctrl_init(void *lcdbase)
{
struct am335x_lcdpanel lcd_panel;
memset(&lcd_panel, 0, sizeof(struct am335x_lcdpanel));
if (load_lcdtiming(&lcd_panel) != 0)
return;
lcd_panel.panel_power_ctrl = &lcdpower;
if (0 != am335xfb_init(&lcd_panel))
printf("ERROR: failed to initialize video!");
/*
* modifiy panel info to 'real' resolution, to operate correct with
* lcd-framework.
*/
panel_info.vl_col = lcd_panel.hactive;
panel_info.vl_row = lcd_panel.vactive;
lcd_set_flush_dcache(1);
}
void lcd_enable(void)
{
br_summaryscreen();
lcdbacklight(1);
}
#endif /* CONFIG_LCD */
int ft_board_setup(void *blob, bd_t *bd)
{
int nodeoffset;
nodeoffset = fdt_path_offset(blob, "/factory-settings");
if (nodeoffset < 0) {
printf("%s: cannot find /factory-settings, trying /fset\n",
__func__);
nodeoffset = fdt_path_offset(blob, "/fset");
if (nodeoffset < 0) {
printf("%s: cannot find /fset.\n", __func__);
return 0;
}
}
if (fdt_setprop(blob, nodeoffset, "bl-version",
PLAIN_VERSION, strlen(PLAIN_VERSION)) != 0) {
printf("%s: no 'bl-version' prop in fdt!\n", __func__);
return 0;
}
return 0;
}
#ifdef CONFIG_SPL_BUILD
static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
void pmicsetup(u32 mpupll)
{
int mpu_vdd;
int usb_cur_lim;
if (i2c_probe(TPS65217_CHIP_PM)) {
puts("PMIC (0x24) not found! skip further initalization.\n");
return;
}
/* Get the frequency which is defined by device fuses */
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
printf("detected max. frequency: %d - ", dpll_mpu_opp100.m);
if (0 != mpupll) {
dpll_mpu_opp100.m = mpupll;
printf("retuning MPU-PLL to: %d MHz.\n", dpll_mpu_opp100.m);
} else {
puts("ok.\n");
}
/*
* Increase USB current limit to 1300mA or 1800mA and set
* the MPU voltage controller as needed.
*/
if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
} else {
usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
}
if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH,
usb_cur_lim, TPS65217_USB_INPUT_CUR_LIMIT_MASK))
puts("tps65217_reg_write failure\n");
/* Set DCDC3 (CORE) voltage to 1.125V */
if (tps65217_voltage_update(TPS65217_DEFDCDC3,
TPS65217_DCDC_VOLT_SEL_1125MV)) {
puts("tps65217_voltage_update failure\n");
return;
}
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* Set DCDC2 (MPU) voltage */
if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
puts("tps65217_voltage_update failure\n");
return;
}
/* Set LDO3 to 1.8V */
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
TPS65217_DEFLS1,
TPS65217_LDO_VOLTAGE_OUT_1_8,
TPS65217_LDO_MASK))
puts("tps65217_reg_write failure\n");
/* Set LDO4 to 3.3V */
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
TPS65217_DEFLS2,
TPS65217_LDO_VOLTAGE_OUT_3_3,
TPS65217_LDO_MASK))
puts("tps65217_reg_write failure\n");
/* Set MPU Frequency to what we detected now that voltages are set */
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
/* Set PWR_EN bit in Status Register */
tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_STATUS, TPS65217_PWR_OFF, TPS65217_PWR_OFF);
}
void set_uart_mux_conf(void)
{
enable_uart0_pin_mux();
}
void set_mux_conf_regs(void)
{
enable_board_pin_mux();
}
#endif /* CONFIG_SPL_BUILD */
int overwrite_console(void)
{
return 1;
}